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Nakyung Kyung,Hyeokkoo Eric Kwon,Sanghee Lim 한국경영정보학회 2019 한국경영정보학회 학술대회논문집 Vol.2019 No.11
The transformative power of Artificial Intelligence (AI) is fundamentally reshaping the healthcare landscape. However, much less is known about how individual users perceive AI-based mobile health interventions. Motivated by such gaps, this study aims to identify (1) the effect of AI interventions on health behavior change, (2) whether AI interventions are as effective as human interventions, and (3) how we can improve the effectiveness of AI interventions with human, reliability, or transparency-related features. Result suggested that while AI intervention effectively improves the achievement rate of health behavior change, it is significantly less effective than Human intervention. The result also shows that users exhibit the highest achievement rate when they receive Human-AI intervention. Regarding the effect of reliability and transparency features on users’ health behavior change, AI-Transparency intervention exhibits a significantly higher achievement rate compared to AI intervention while AI-Reliability intervention does not outperform AI intervention.
Nakyung Kyung,Jiyoung Park,Byungtae Lee 한국경영정보학회 2019 한국경영정보학회 학술대회논문집 Vol.2019 No.11
Although a significant amount of research has examined the effect of broadband on the rise of employment, the majority of this work has been focused on general population's employment, with little attention paid to the effect of broadband may have on social minority employment, i.e., disabled. Motivated from this research gap, we empirically examine the effect of the broadband use on disabled employment in the United States during 2013–2016 using a county level panel data set. We find evidence that, on average, broadband use increases the disabled employment. This research contributes to the literature addressing the positive effect of Information Systems (IS) on labor market, by addressing how the broadband reshapes the disabled employment. We hope our findings help researchers, governments, and law enforcement entities that endeavor to include the disabled in labor market and our society.
Llama2 LLM과 prompting을 통한 Financial QA 풀이
이나경 ( Nakyung Lee ),기경서 ( Kyung Seo Ki ),권가진 ( Gahgene Gweon ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2
본 논문에서는 RLHF 기반의 오픈소스 LLM인 llama-2-13b model을 FinQA task에 적용하여 그 성능을 확인해 보았다. 이때, CoT, few-shot과 같은 다양한 prompting 기법들을 적용해보며 어떤 방법이 가장 효과적인지 비교했다. 그 결과, 한 번(total)에 task를 수행한 경우 few-shot 예시를 2개 사용했을 때보다 3개 사용했을 때, subtask로 나누어 수행한 경우 prompt로 답(simple)만 제시했을 때보다 CoT 형식으로 주었을 때, 각각 24.85%의 정확도로 가장 높은 성능을 보였다.
Potential Human Stress Factors in Sailing Environment
JuYoun Kwon,Gyouhyung Kyung,Seungji Lee,Nakyung Lee 대한인간공학회 2013 대한인간공학회 학술대회논문집 Vol.2013 No.5
Objective: The aim of this study was to investigate human stress factors which can have influence on human performance and comfort in sailing environment. Background: When people are exposed to the certain environment for performing the task, they experience various environmental stress factors. Ergonomic factors should be considered for designing work space and work environment with comfort and health, so that human performance can be fulfilled effectively. In the case of yacht, especially, such as the sailing yacht which requires trimming the sails and the motor yacht which needs electric motors, it would be important to consider comfort as well as the performance for sailors. It can be useful information to design the boat and plan the sailing activity, figuring out the human stress factors related to human performance, health and comfort and understanding the relation among the human stress factors. Method: It deals with human stress factors and symptoms related to the stress factors which can affect the task performance and comfort while human are exposed to the physical environment such as vibration, impact, lighting, noise, thermal stress and pressure on board. Results: A influential stress factors on human performance and comfort during sailing are vibration, impact, and thermal stress and the major symptoms are motion sickness and injury although a number of studies showed that injury patterns and other symptoms would be various depending on the boat classes and crew positions which can make their activity levels changed. Conclusion: It is likely to require minimizing the effects of the physical stress factors such as vibration, impact, thermal stress and pressure and alleviating the symptoms such as motion sickness and injury. Application: This result can be applied to developing hull design as well as sailing gear related to sailing boats in order to alleviating sailors’ stress factors.